Ozone Layer

The Montreal Protocol banned the use of CFCs. What do they hope this will do for the ozone layer?

• Deplete it completely

• Make the ozone hole smaller

• Make the ozone hole larger

• Thin the layer to allow more gas to escape

Location of the large whole in the ozone.

• Antarctica

• Artic

• Iceland

• Africa

How do CFCs affect ozone production?

• UV radiation frees a chlorine atom, which breaks down ozone.

• Infrared radiation frees a chlorine atom, which breaks down ozone.

• UV radiation frees a fluorine atom, which breaks down ozone.

• Infrared radiation frees a chlorine atom, which breaks down ozone.

Tags

NGSS.MS-PS1-3

How many ozone atoms can a single chlorine atom break down?

• 5,000

• 10,000

• 50,000

• 100,000

Tags

NGSS.HS-PS1-5

When is the ozone hole largest?

• early Antarctic spring

• late Antarctic summer

• early Antarctic winter

• late Antarctic fall

Tags

NGSS.MS-ESS2-6

Which of these sets of three items produce CFCs

• cars, factories, and cardboard

• spray cans, cardboard, insulation

• spray cans, refrigerant, cardboard

• spray cans, refrigerant, insulation

How many oxygen atoms does a molecule of ozone contain?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Second layer of the atmosphere, extending about 17-48 kilometers above the earth’s surface. It contains a layer of gaseous ozone, which filters out about 95% of the incoming harmful ultraviolet radiation emitted by the sun

• Mesosphere

• Troposphere

• Stratosphere

• Ozone

In which layer of the atmosphere is the ozone layer found?

• troposphere

• stratosphere

• mesosphere

• thermosphere

CFCs are responsible for the damage caused to the ozone layer. Select ALL of chemical elements make up CFCs.

• Carbon

• Hydrogen

• Oxygen

• Fluorine

• Chlorine

Tags

NGSS.MS-PS1-1